/***************************************************************************
 *   Copyright (c) Juergen Riegel         <juergen.riegel@web.de>          *
 *                                                                         *
 *   This file is part of the FreeCAD CAx development system.              *
 *                                                                         *
 *   This library is free software; you can redistribute it and/or         *
 *   modify it under the terms of the GNU Library General Public           *
 *   License as published by the Free Software Foundation; either          *
 *   version 2 of the License, or (at your option) any later version.      *
 *                                                                         *
 *   This library  is distributed in the hope that it will be useful,      *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU Library General Public License for more details.                  *
 *                                                                         *
 *   You should have received a copy of the GNU Library General Public     *
 *   License along with this library; see the file COPYING.LIB. If not,    *
 *   write to the Free Software Foundation, Inc., 59 Temple Place,         *
 *   Suite 330, Boston, MA  02111-1307, USA                                *
 *                                                                         *
 ***************************************************************************/


#ifndef _MeshAlgos_h_
#define _MeshAlgos_h_

#ifdef FC_USE_GTS
#  include <gts.h>
#endif

#include <vector>

#include <Base/Vector3D.h>

#include "CurveProjector.h"

class TopoDS_Edge;
class TopoDS_Shape;

namespace MeshCore
{
class MeshKernel;
};

using MeshCore::MeshKernel;

namespace MeshPart
{

/** The mesh algorithems container class
 */
class MeshPartExport MeshAlgos
{
public:
  /** Calculate per Vertex normales and adds the Normal property bag
  */
  static void offset(MeshCore::MeshKernel* Mesh, float fSize);
  static void offsetSpecial2(MeshCore::MeshKernel* Mesh, float fSize);
  static void offsetSpecial(MeshCore::MeshKernel* Mesh, float fSize, float zmax, float zmin);

  /** Coarsen the mesh
  */
  static void coarsen(MeshCore::MeshKernel* Mesh, float f);

  /** makes a boolean add
   * The int Type stears the boolean oberation: 0=add;1=intersection;2=diff
  */
  static MeshCore::MeshKernel* boolean(MeshCore::MeshKernel* Mesh1, MeshCore::MeshKernel* Mesh2, MeshCore::MeshKernel* pResult, int Type=0);

#ifdef FC_USE_GTS

  /** Creates a GTS Surface from a MeshKernel
  */
  static GtsSurface* createGTSSurface(MeshCore::MeshKernel* Mesh);

  /** Creates a GTS Surface from a MeshKernel
  */

  static void fillMeshFromGTSSurface(MeshCore::MeshKernel* pMesh, GtsSurface* pSurface);
#endif

  static void cutByShape(const TopoDS_Shape &aShape,const MeshCore::MeshKernel* pMesh,MeshCore::MeshKernel* pToolMesh);

  /// helper to discredicice a Edge...
  static void GetSampledCurves( const TopoDS_Edge& aEdge, std::vector<Base::Vector3f>& rclPoints, unsigned long ulNbOfPoints = 30);

  /// creates a mesh loft on base of a curve and an up vector
  static void LoftOnCurve(MeshCore::MeshKernel &ResultMesh,const TopoDS_Shape &Shape, const std::vector<Base::Vector3f> &poly,
                          const Base::Vector3f & up = Base::Vector3f(0,0,1),  float MaxSize = 0.1);

  /*
  struct FaceSplitEdge
  {
    unsigned long ulFaceIndex;
    Base::Vector3f p1,p2;
  };

  static void projectCurve( MeshWithProperty* pMesh,
                                       const TopoDS_Edge& aEdge,
                                       const std::vector<Base::Vector3f> &rclPoints,
                                       std::vector<FaceSplitEdge> &vSplitEdges);
*/
  static void cutByCurve(MeshCore::MeshKernel* pMesh,const std::vector<CurveProjector::FaceSplitEdge> &vSplitEdges);
/*
  static bool projectPointToMesh(MeshKernel &MeshK,const Base::Vector3f &Pnt,Base::Vector3f &Rslt,unsigned long &FaceIndex);
*/

};

} // namespace MeshPart

#endif 
